The key role of the teacher in the modern globalized and computerized society is mentioned. Particular attention is paid to pedagogical interaction -the subject of Ivan Zyazyun's study. The essence of pedagogical mastery and the content of professional competence are revealed. The importance of teacher's communicativeness is noted. The significance of mastery of teacher's professional speech is emphasized. The expediency of pedagogical tact is considered. The importance of the ability of teachers to prevent conflict situations is underlined.